strdup()
Create a duplicate of a string
Synopsis:
#include <string.h>
char* strdup( const char* src );
Arguments:
- src
- The string that you want to copy.
Library:
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
Description:
The strdup() function creates a duplicate of the string pointed to by src, and returns a pointer to the new copy.
The strdup() function allocates the memory for the new string
by calling
malloc()
;
it's up to you to release the memory by calling
free()
.
Returns:
A pointer to a copy of the string, or NULL if an error occurred.
Examples:
#include <stdio.h> #include <string.h> #include <stdlib.h> int main( void ) { char *dup; dup = strdup( "Make a copy" ); printf( "%s\n", dup ); free (dup); return EXIT_SUCCESS; }
Classification:
Safety: | |
---|---|
Cancellation point | No |
Interrupt handler | No |
Signal handler | No |
Thread | Yes |